At which point is the velocity the greatest? At which points is the velocity 0 m/s? At which point is the acceleration 0 m/s2? At which points is the acceleration the greatest?.

Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a.

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

How to tell if a molecule is polar or nonpolar with electronegativity